A Summoner? - Chapter 49: One Punch Kayo?

Perhaps it is the choice of fate. As a senior otaku, Qian Lingfeng got the “steel shell system”. However, when he swept the world with the system, became a local rich man, made all kinds of beautiful women, opened a harem, and realized the ultimate fantasy of thousands of otaku, he found that things seemed far from simple!
When the end comes, biochemical zombies suddenly come down, fierce beasts are in power, bloodthirsty zerg roam to kill the world, and human lives are comparable to dirt. Where will weak human beings go in this world? Is humanity going to be extinct? Or … can an otaku save the fate of the human race?

- Description from Novelupdates

“Why does no one remember the true world?!”

David crossed over to a new planet after getting killed on his previous one. This new planet is dangerous and filled with supernatural creatures like monsters and demons. Without enough power to protect yourself, you could get killed at any time.Unfortunately, David only has average talent and struggles to progress on this new planet. After 3 years of trying to become more powerful, he is eventually expelled from his warrior school due to his average talent.Faced with this situation, David doesn't know what to do. He is unsure if he will be able to survive on this planet or protect his family. For 3 years, he has not received any kind of help or advantage that would make his life easier.Ultimately, David almost loses hope and accepts his fate as an average person. However, just when he has given up, he suddenly receives a cheat or “Golden finger” that gives him the chance to become as powerful as the other geniuses on the planet.Will he get the chance to become powerful? On this new planet, he can be killed at any time by supernatural creatures. To learn more about David's journey, continue reading.

"When will people understand.... I'm only half insane?"